Hello,

I have imported all JP2 from the link below (except _1.jp2, _10.jp2, _100.jp2 which are lightweight variants) into an ImageMosaic store.

https://data.public.lu/fr/datasets/orthophoto-officelle-du-grand-duche-de-luxembourg-edition-2016


However, it's not working correctly, see the attached screenshot from layer preview. Also, when querying WMS, I receive a valid image for a given bbox not being into the white part in preview, but if it is, all I get is blank.

I think some pictures overlap others without applying proper transparency, so I tried to set Input Transparent Color to FFFFFF but then everything is blank.


I'm not sure what's going on here so I checked the JP2 files using gdalinfo (homemade build, include jasper, ECW, MrSID) and I cannot see a "mask" inside metadatas so I guess I can't use "Footprint behavior" option in layer config, but I'm not sure.


Any help would be appreciated, I'm stuck.


Thanks, Adam.

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